1. Ifihan
The Hanna Instruments HI 711 Checker HC is a handheld colorimeter designed for accurate and precise measurement of total chlorine levels. This device offers a simpler and more cost-effective alternative to chemical test kits while providing greater accuracy. It utilizes the EPA-approved DPD method 4500-Cl G, making it suitable for applications requiring this standard. This manual provides essential information for the proper setup, operation, maintenance, and troubleshooting of your HI 711 Checker HC.
2. Alaye Aabo
Please read all instructions carefully before using the HI 711 Checker HC. Failure to do so may result in inaccurate readings or damage to the device. Always handle reagents with care and follow all safety precautions provided with the reagent kits. Keep the device and reagents out of reach of children.
3. Ọja Ipariview
The HI 711 Checker HC is a compact, single-button operation device featuring a large LCD screen for easy readability. It is designed for portability and ease of use in various environments.
Aworan 1: The Hanna Instruments HI 711 Checker HC Handheld Colorimeter shown with a sample vial. The device displays a reading of 0.87 ppm for Total Chlorine.
Awọn eroja pataki pẹlu:
- Ifihan LCD: Shows measurement readings and operational prompts.
- Bọ́tìnì Iṣẹ́: Used for powering on/off and initiating measurements.
- Cuvette Holder: Compartment for inserting sample lẹgbẹrun.
- Abala Batiri: Located at the rear for AAA battery installation.
4. Eto
4.1 Fifi sori batiri
- Wa yara batiri ni ẹhin ẹrọ naa.
- Yọ ideri batiri kuro.
- Insert one (1) AAA battery, ensuring correct polarity (+/-).
- Rọpo ideri batiri ni aabo.
4.2 Igbaradi akọkọ
Before first use, ensure the cuvettes are clean and free from scratches or debris. Use distilled or deionized water for rinsing.
5. Awọn ilana Iṣiṣẹ
The HI 711 Checker HC operates using a simple, single-button interface. Follow these steps for accurate total chlorine measurements:
- Agbara Tan: Press the button to turn the Checker HC on. The display will show "---" then "Add C1".
- Zero the Device:
- Fill a clean cuvette with 10 mL of unreacted sample water (the water you wish to test, before adding reagent).
- Cap the cuvette and wipe it thoroughly with a lint-free cloth to remove any fingerprints or smudges.
- Insert the cuvette into the Checker HC, ensuring the cap is fully seated.
- Press the button. The display will show "Add C2" when zeroing is complete.
- Fi Reagent kun:
- Remove the cuvette from the Checker HC.
- Add one packet of HI 711-0 Total Chlorine reagent to the sample ninu cuvette.
- Cap the cuvette and shake gently for approximately 20 seconds to dissolve the reagent.
- Wipe the cuvette thoroughly with a lint-free cloth.
- Iwọn:
- Insert the cuvette back into the Checker HC.
- Press the button. The display will show a countdown timer (e.g., "2:00"). This is the reaction time required for the DPD method.
- After the countdown, the Checker HC will display the total chlorine concentration in ppm (parts per million).
- Agbara Pa: The device features an auto shut-off function to conserve battery life. It will automatically turn off after 10 minutes of inactivity. To manually turn off, press and hold the button until "OFF" is displayed.
Aworan 2: The Hanna Instruments HI 711 Checker HC showing a measurement of 0.82 ppm for Total Chlorine on its LCD screen.
6. Itọju
6.1 Ninu
- Always keep the cuvettes clean. Rinse them thoroughly with distilled or deionized water after each use.
- Wipe the exterior of the Checker HC with a soft, damp asọ. Ma ṣe lo abrasive ose tabi epo.
- Ensure the cuvette holder is clean and dry before storage.
6.2 Ibi ipamọ
- Store the Checker HC in a cool, dry place away from direct sunlight and extreme temperatures.
- If storing for extended periods, remove the AAA battery to prevent leakage.
- Store reagents in their original packaging in a cool, dark place.
7. Laasigbotitusita
This section addresses common issues you might encounter with your HI 711 Checker HC.
| Isoro | Owun to le Fa | Ojutu |
|---|---|---|
| Awọn kika aipe tabi aisedede | Dirty cuvette, expired reagent, improper zeroing, air bubbles in sample | Clean cuvette thoroughly, use fresh reagent, ensure proper zeroing with unreacted sample, remove air bubbles by gently tapping the cuvette. |
| Ẹrọ naa ko ṣiṣẹ | Dead battery, incorrect battery installation | Replace AAA battery, check battery polarity. |
| "Aṣiṣe" ifiranṣẹ lori ifihan | Measurement outside range, light interference | Rii daju sample is within the device's measurement range. Perform measurement in a stable light environment. Re-zero the device. |
8. Awọn pato
The following are the technical specifications for the Hanna Instruments HI 711 Checker HC:
- Awoṣe: HI-711
- Parameter: Lapapọ Chlorine
- Ọna: Adaptation of the EPA DPD method 4500-Cl G
- Orisun Agbara: 1 x AAA Batiri
- Awọn iwọn ọja: 5 x 3 x 4 inches
- Ìwúwo: 8.82 iwon
- Tiipa Aifọwọyi: Lẹhin iṣẹju 10 ti aiṣiṣẹ
9. atilẹyin ọja Information
Hanna Instruments products are warranted against defects in workmanship and materials when used for their intended purpose and maintained according to instructions. The specific warranty period may vary by region and product. Please refer to the warranty card included with your product or visit the official Hanna Instruments webAaye fun alaye atilẹyin ọja ofin ati ipo. Jeki ẹri rira rẹ fun awọn iṣeduro atilẹyin ọja.
10. Onibara Support
For technical assistance, troubleshooting, or information regarding reagents and accessories, please contact Hanna Instruments customer support. You can find contact details on the official Hanna Instruments website or through your local distributor. When contacting support, please have your product model number (HI-711) and purchase date available.
